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Eaton QB3020GF Ground Fault Circuit Breaker

  • 20A
  • 3 Pole
  • Bolt-On
Eaton QB3020GF
Ground Fault Circuit Breaker
Brand Eaton
SKU QB3020GF
Select Item Condition
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  • 20A
  • 3 Pole
  • Bolt-On

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Eaton QB3020GF 3 Pole Ground Fault Circuit Breaker

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$826.50 No Stock

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Description

Eaton QB3020GF 3 Pole Ground Fault Circuit Breaker

The Eaton QB3020GF is a 3 Pole molded case ground fault circuit breaker with a current rating of 20 Amps and a voltage rating of 208Y/120V. It has an interrupting rating of 10kAIC. The QB3020GF has a bolt-on connection type.

Specifications

Key specifications
Brand Eaton
Series QB
Amperage 20A
Poles 3
Mounting Style Bolt-On
Voltage 208Y/120VAC
Phase 3
AIC Rating 10kA @ 208Y/120VAC
Fit and installation
Terminal Type Lugs
For Use With Eaton Quicklag Panelboards
Wire Gauge 14-4 AWG
Max Wire 4 AWG
Min Wire 14 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-time, Instantaneous
Trip Adjustability Fixed Thermal, Fixed Magnetic
Standards and features
Special Classification GFCI
Approval UL

Product FAQs

7 answers
Which panelboards are compatible with the QB3020GF circuit breaker?

This bolt-on breaker is designed for use in Eaton, Cutler-Hammer, and Westinghouse Quicklag panelboards, including Pow-R-Line and Pow-R-Stock distribution panels that accept QB-series breakers.

How is the neutral connection handled on the QB3020GF?

This GFCI breaker utilizes a pigtail neutral connection. The coiled white pigtail wire must be terminated at the panel neutral bus to ensure proper ground fault detection and operation.

What wire gauge range is supported by the lugs on this 20A breaker?

The terminal lugs on the QB3020GF are rated to accept #14 to #4 AWG wire.

Can the QB3020GF be used to replace legacy Cutler-Hammer breakers?

Yes, Eaton manufactures this breaker as a direct replacement for older Cutler-Hammer and Westinghouse QB-series 3-pole GFCI breakers in existing Quicklag bolt-on panels.

What type of ground fault protection does this breaker offer?

The QB3020GF provides ground fault personnel protection. It is designed to monitor the current balance across the poles and interrupt the circuit if a ground fault is detected, mitigating the risk of electrical shock.

Is this breaker suitable for straight 240V or 480V systems?

No, the QB3020GF is strictly rated for 208Y/120V systems. It cannot be used on straight 240V or 480V distribution systems.

Does this 3-pole breaker feature an independent or common trip mechanism?

The QB3020GF features a common trip mechanism. If an overload, short circuit, or ground fault occurs on any single phase, all three poles will trip simultaneously to disconnect power.

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Reviews

5.0
Rated 5.0 out of 5 stars
Based on 1 review
Rating
Ratings
1 review
  • MC
    Marcos C.
    Verified Buyer
    Reviewing
    Eaton / Cutler-Hammer QB1030GF - 30A GFCI Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    11/20/25
    circuit breakers

    good product and showed up on time